我的生命是有限的，而知识是无限的。用有限的生命去追求无限的知识，是很危险的！

All changes, even the most longed for, have their melancholy; for what we leave behind us is a part of ourselves; we must die to one life before we can enter into another.

能源的未来不在于燃烧过去，而在于用明天的创新为现在提供动力。